Subtract 1/48 from 21/36
21/36 - 1/48 is 9/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
21/36 = 21 × 4/36 × 4 = 84/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
1/48 = 1 × 3/48 × 3 = 3/144 - Subtract the two like fractions:
84/144 - 3/144 = 84 - 3/144 = 81/144 - After reducing the fraction, the answer is 9/16
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